// 导入导出 https://blog.csdn.net/weixin_43708622/article/details/135389608

export function add(a, b) {
  return a + b;
}

export function sub(a, b) {
  return a - b;
}

function multiply(a, b) {
  return a * b;
}
function divide(a, b) {
  return a / b;
}
export {
  multiply,divide
}


// https://blog.csdn.net/weixin_51375107/article/details/118784954
// const test1 = "s";
// const test2 = "ss";
// const test3 = "sss";
// export default test1;
// export {
//   test2
// };
// export const test4 = "ssss";
// console.log(module.exports)